<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			.box {
				width: 1200px;
				height: 460px;
				background-color: #0000FF;
				margin: 0 auto;
			}
			.left {
				float: left;
				width: 230px;
				height: 460px;
				background-color: red;
			}
			.right {
				float: left;
				width: 970px;
				height: 460px;
				background-color: purple;
			}
		</style>
	</head>
	<body>
		<div class="box">
			<div class="left">左边</div>
			<div class="right">右边</div>
		</div>
	</body>
</html>
